EP2642004B1 - Garnzuführungs-/-rückgewinnungsverfahren für Textilmaschinen, und Vorrichtung zur Durchführung eines solchen Verfahrens - Google Patents

Garnzuführungs-/-rückgewinnungsverfahren für Textilmaschinen, und Vorrichtung zur Durchführung eines solchen Verfahrens Download PDF

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Publication number
EP2642004B1
EP2642004B1 EP12008643.4A EP12008643A EP2642004B1 EP 2642004 B1 EP2642004 B1 EP 2642004B1 EP 12008643 A EP12008643 A EP 12008643A EP 2642004 B1 EP2642004 B1 EP 2642004B1
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EP
European Patent Office
Prior art keywords
yarn
reel
recovering
ref
tension
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EP12008643.4A
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English (en)
French (fr)
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EP2642004A1 (de
Inventor
Luca Gotti
Mirko Ruggeri
Rosario Castelli
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LGL Electronics SpA
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LGL Electronics SpA
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Publication of EP2642004A1 publication Critical patent/EP2642004A1/de
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/18—Driven rotary elements
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/347—Yarn brakes
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/367—Monitoring yarn quantity on the drum
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/94—Driving-gear not otherwise provided for
    • D04B15/99—Driving-gear not otherwise provided for electrically controlled
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/10—Indicating, warning, or safety devices, e.g. stop motions
    • D04B35/14—Indicating, warning, or safety devices, e.g. stop motions responsive to thread breakage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a yarn-feeding/recovering method for textile machines and to an apparatus for carrying out such method.
  • weft feeders which are provided with a stationary drum on which a motorized swivel arm winds a plurality of yarn loops forming a stock.
  • the yarn which is unwound from the drum upon request of a textile machine arranged downstream, is subject to a stabilizing brake that maintains the unwinding yarn under a slight tension.
  • the stabilizing brake typically comprises a frustoconical hollow member which is biased with its inner surface against the delivery edge of the drum by manually adjustable elastic means.
  • a controlled brake may be arranged downstream of the feeder, e.g., a foil-based brake of the type described in EP 0622485 .
  • This brake is controlled by a feedback loop which receives a measured tension signal from a sensor, then compares it with a reference tension which is indicative of a desired tension, and finally modulates the braking action in such a way as to minimize the difference between the reference tension and the measured tension.
  • Feeders are also known in which the yarn is wound on a rotary drum, which draws the yarn from a reel and feeds it to the downstream textile machine.
  • the tension of the yarn unwinding from the feeder is controlled by modulating the speed of rotation of the drum, always on the basis of a signal received from a tension sensor as in the previous case. Accordingly, in other words, the change of tension to be applied is determined by the difference between the yarn-feeding speed and the yarn-drawing speed set in the downstream machine.
  • a recovering device of this type is described in EP 1741817 and essentially comprises a motorized reel having an oblique passage defined therein, through which the yarn runs.
  • the passage extends between an inlet port which is axially formed on an end surface of the reel, and an outlet port which is formed on the cylindrical, lateral surface of the reel.
  • a critical issue of the above systems consists in coordinating the operation of the braking system, which operates on the basis of the measured tension of the yarn, with the operation of the recovering system, which is enabled in response to commands sent from the downstream machine on the basis on a predetermined pattern, with consequent difficulties in accurately controlling the feeding parameters and the state of the yarn during the recovering steps, e.g., in relation to possible, accidental events which may occur, such as a yarn breakage.
  • Fig. 1 diagrammatically shows a yarn-feeding/recovering apparatus 10 having a yarn feeder 12 provided with a stationary drum 14 and with a flywheel 16 driven to rotate by a motor 18.
  • the flywheel draws yarn F from a spool 20 and winds it on drum 14 in the shape of loops forming a stock.
  • Yarn F which is unwound from the drum upon request of a general textile machine 22 arranged downstream, is subject to the braking action of a stabilizing brake adapted to maintain the yarn under a slight tension.
  • the stabilizing brake conventionally comprises a frustoconical hollow member 24 which is biased with its inner surface against the delivery edge of drum 14 by elastic means 26.
  • yarn F coming out of stabilizing brake is further subject to the braking action of an electronic yarn-braking device (or brake) 28 which is controlled by a tension control block TC of a control unit CU (which is typically incorporated in yarn feeder 12).
  • Control unit CU is programmed to modulate the braking action applied to yarn F by electronic brake 28, on the basis of a signal received from a tension sensor 30, in such a way as to maintain the tension of the delivered yarn substantially constant on a reference value T_ref.
  • the stock on drum 14 is controlled by a triad of sensors.
  • a first sensor S1 preferably a Hall sensor, detects the passage of magnets M integral with flywheel 16 in order to determine the amount of yarn which is wound on the drum and the winding speed.
  • a speed-evaluating block SE processes signals UWP in order to calculate the yarn comsumption speed on the basis of the time interval between pulses UWP, and generates an enabling signal LE which enables tension control block TC when this speed is higher than a predetermined threshold value, which is preferably equal to zero in the present embodiment.
  • a predetermined threshold value which is preferably equal to zero in the present embodiment.
  • Yarn-recovering device 32 comprises a reel 34 keyed to a drive shaft 36 of a motor 38, preferably a stepping motor or, alternatively, a brushless motor provided with an absolute sensor, in ordet to measure the real position based on techniques conventional in the field.
  • Reel 34 is arranged with its axis A slanting at a first angle ⁇ with respect to the direction of yarn F, indicated by arrow D, so that its end surface 34a facing away from motor 38 obliquely faces the incoming yarn.
  • Reel 34 has an axial cylindrical seat 40 at its end surface 34a.
  • a passage 44 defined within reel 34 extends between an inlet port 44a open to axial cylindrical seat 40, and an outlet port 44b open to the lateral, winding surface 34b of the reel.
  • Passage 44 is rectilinear and is slanting at a second angle ⁇ , which is substantially equal to first angle ⁇ , with respect to axis A of the reel.
  • An internally rounded wearproof ring 46 made of ceramic is applied to the edge of cylindrical seat 40.
  • An inlet yarn-guide eyelet 48 and an outlet yarn-guide eyelet 50 respectively applied upstream and downstream of reel 34 are arranged at the same level of wearproof ring 46.
  • Yarn F passes through upstream yarn-guide eyelet 48, cylindrical seat 40, passage 44 and downstream yarn-guide eyelet 50.
  • motor 38 By operating motor 38, as shown in Fig. 3 , the yarn downstream of the yarn-recovering device is wound on reel 34.
  • yarn-recovering device 32 For a more detailed description of yarn-recovering device 32, reference should be made to EP 1741817 .
  • electronic brake 28 and yarn-recovering device 32 are alternately enabled as a function of the signals from third sensor S3, which are indicative of the yarn comsumption, indipendently from any other operative signals from downstream machine 22.
  • control unit CU continues to modulate the braking action of electronic brake 28 in such a way as to maintain the tension substantially constant at reference value T_ref, while yarn-recovering device remains at a position of minimum interference with the yarn, as shown in Fig. 2 .
  • reel 34 can rotate at a modulated speed in both directions.
  • control unit CU stops reel 34, enables electronic brake 28 again, and then the cycle is repeated.
  • a first condition occurs when N reaches a value N_max corresponding to the maximum amount of yarn which can be stored on the reel. In this case, the process is stopped and an alarm signal is generated.
  • signal LE is used as a comsumption indicator that is indicative of the delivery of yarn from the feeder and, therefore, of the withdrawal of yarn by the downstream machine; on the basis of this indicator, electronic brake 28 and yarn-recovering device 32 are alternately enabled as discussed above.
  • a weft feeder 100 is diagrammatically shown, which is provided with a motorized drum 102 on which yarn F' is wound.
  • Motorized drum 102 draws yarn F' from a spool 104 and delivers it to a textile machine 106 arranged downstream.
  • the tension of yarn F' unwinding from the feeder is conventionally controlled in such a way as to remain substantially constant on a reference value T_ref, by a control unit CU' (which is typically incorporated in yarn feeder 102) provided with a tension control block TC' that modulates the speed of rotation V RP of drum 102 on the basis of the signals from a tension sensor 108 installed on the feeder. Accordingly, the change of tension to be applied is determined by the difference between the yarn-feeding speed and the yarn-drawing speed set in downstream machine 106.
  • a yarn-recovering device 120 is arranged between motorized drum 102 and the tension sensor; in the present embodiment, it is incorporated in housing 103 of feeder 100, as shown in more detail in Figs. 6-11 .
  • Yam-recovering device 120 comprises a motorized reel 122 lying with its axis parallel to the axis of motorized drum 102.
  • the motor (not shown) of reel 122 is preferably a stepping motor or, alternatively, a brushless motor provided with an absolute sensor for measuring its real position.
  • a passage 124 is defined within reel 122, which extends radially between an inlet port 126, which is formed at the middle of a free end 122a of the reel with its axis inclined with respect to the axis of reel 122, and an outlet port 128 formed on the lateral winding surface 122b of the reel.
  • Inlet port 126 and outlet port 128 are internally rounded for reducing the wear by friction.
  • Yarn F' from spool 104 passes through an inlet yarn-guide eyelet 130 attached to the feeder, is wound between drum 12 and an arm 132 of a conventional tension limiter (which does not fall within the scopes of the present invention and, therefore, will not be further disclosed), runs through passage 124 which, at rest, lies at the resting position of Fig. 10 such that it substantially does not interfere with the path of the yarn, then engages a sensing element 134 of tension sensor 108, the latter being also incorporated in housing 103 of the feeder, and finally passes through an outlet yarn-guide eyelet 136 to feed the downstream machine.
  • control unit CU' is conventially received in a seat 138 of feeder 100, which also contains tension sensor 108, and is provided with programming push buttons 140 and with a display 142.
  • drum 12 of the feeder and reel 122 of yarn-recovering device 120 are alternately enabled as a function of speed V RP of drum 102, independently from any other operative signal from the downstream machine.
  • drum 102 continues to rotate at a modulated speed, in such a way as to maintain the tension substantially constant on reference value T_ref, while reel 122 remains at its resting position of Fig. 10 .
  • speed V RP of the drum becomes equal to zero, which circumstance is indicative of the fact that the feeder has stopped to feed yarn and, therefore, the downstream machine has either stopped to draw yarn or started to return it
  • control unit CU' enables reel 122 to recover yarn at a speed V RR modulated in such a way as to maintain the tension substantially constant on a reference value T_ref.
  • the number of revolutions and fractions of revolutions N completed by reel 122 is monitored.
  • reel 122 can rotate in both directions at a modulated speed.
  • control unit CU' stops reel 122, enables drum 102 again, and then the cycle is repeated.
  • an emergency condition by which the tension control can be bypassed.
  • N_max a value corresponding to the maximum amount of yarn which can be stored on the reel
  • the speed V RP of the drum is used as a comsumption indicator, which is indicative of the delivery of yarn by the feeder and, consequently, of the withdrawal of yarn by the downstream machine; on the basis of this indicator, drum 102 and reel 122 are alternately enabled according to the above method.
  • a stabilizing brake as described in EP 1059375 which applies a controlled braking action to the unwinding yarn, could be used in lieu of electronic brake 28.
  • the yarn-recovering device is always positioned in such a way that, at rest, it can assume positions not interfering with the yarn, as shown in Fig. 2 for the first embodiment and in Fig. 10 for the second embodiment.
  • the reel could be arranged in such a way as to deviate the yarn even at its resting position in which it applies the minimum braking action upon the yarn.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Looms (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (10)

  1. Garnzuführungs-/-rückholungsverfahren für Textilmaschinen, bei dem eine Textilmaschine (22, 106) Garn (F, F') von einem Garnzuführer (12, 100) über einen Garnrückholer (32, 120) erhält, der mit einer motorisierten Garnspule (34, 122) mit einem darin ausgebildeten Durchlass (44, 124) ausgestattet ist, durch den das Garn verläuft und der sich zwischen einer Einlassöffnung (44a, 126), die zur Mitte des freien Endes (34a, 122a) der Garnspule offen ist, und einer Auslassöffnung (44b, 126) erstreckt, die auf der Seitenfläche (34b, 122b) der Garnspule gebildet ist, wobei der Garnrückholer (32, 120) dazu betreibbar ist, eine bereits an die Maschine abgegebene Garnmenge vorübergehend zurückzuholen und sie zu einem späteren Zeitpunkt wieder abzugeben, und bei dem die Zugspannung des Garns (F, F'), wenn die Garnspule (34, 122) sich in einer Stellung minimaler Garnbeeinflussung befindet, mittels einer Einstelleinrichtung (28, 102) im Wesentlichen konstant auf einem Referenzwert (T_ref, T'_ref) gehalten wird, basierend auf einem von einer Sensoreinrichtung (30, 108) erzeugten, gemessenen Zugspannungssignal (T_meas, T'_meas),
    gekennzeichnet durch
    Beschaffen eines Verbrauchsindikators (LE, VRP), der die Garnabgabe aus dem Garnzuführer (12, 100) anzeigt und unabhängig von jeglichen Betriebssignalen der Textilmaschine (22, 106) ist und, falls der Verbrauchsindikator (VRP, LE) eine Unterbrechung der Garnabgabe anzeigt,
    zeitweiliges Ausschalten der Einstelleinrichtung (28, 102) und zeitweiliges Einschalten des Garnrückholers (32, 120) zum Drehen mit einer Geschwindigkeit, die basierend auf dem gemessenen Zugspannungssignal (T_meas, T'_meas) moduliert wird, um die Zugspannung des Garns im Wesentlichen konstant auf dem Referenzwert (T_ref, T_ref) zu halten.
  2. Verfahren nach Anspruch 1, gekennzeichnet durch Überwachen der Stellung (N) der Garnspule (34, 122) bezüglich der Stellung minimaler Garnbeeinflussung und, falls die Garnspule (34, 122) in die Stellung minimaler Beeinflussung zurückkehrt, während der Garnrückholer eingeschaltet ist, Ausschalten des Garnrückholers und Wiedereinschalten der Einstelleinrichtung (28, 128).
  3. Verfahren nach Anspruch 1 oder 2, gekennzeichnet durch Überwachen der Stellung (N) der Garnspule (34, 122) bezüglich der Stellung minimaler Garnbeeinflussung und Anhalten der Garnspule (34, 122) bei Erreichen einer vorbestimmten Maximalzahl an Rückholumdrehungen.
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Garnzuführer (12) mit einer stationären Garnwickeltrommel (14) versehen ist, von der das Garn (F) auf Anforderung von der Textilmaschine (22) abgewickelt wird, und dass die Einstelleinrichtung aus einer elektronischen Garnabbremsvorrichtung (28) besteht, die stromabwärts des Garnzuführers angeordnet und durch eine Steuereinheit (CU) gesteuert ist, wobei die Entnahme von Garn von der stationären Trommel (14) durch eine Sensoreinrichtung (S3) überwacht wird, dadurch gekennzeichnet, dass der Verbrauchsindikator aus einem Verbrauchssignal (LE) besteht, das auf den von der Sensoreinrichtung (S3) erzeugten Signalen (UWP) basiert.
  5. Verfahren nach Anspruch 4, gekennzeichnet durch ein Überwachen der Stellung (N) der Garnspule (34) bezüglich der Stellung minimaler Garnbeeinflussung und, falls das Verbrauchssignal (LE) anzeigt, dass Garn entnommen wird, während der Garnrückholer eingeschaltet ist, automatisches Bewegen der Garnspule (34) in ihre Stellung minimaler Beeinflussung, Ausschalten des Garnrückholers (32) und Wiedereinschalten der Einstelleinrichtung (28).
  6. Verfahren nach einem der Ansprüche 1 bis 3, bei dem der Garnzuführer (100) mit einer motorisierten Garnwickeltrommel (102) versehen ist, auf die Garn gewickelt ist, das der stromabwärtigen Maschine zugeführt werden soll, und bei dem die Einstelleinrichtung eine Steuereinheit (CU') umfasst, die dazu programmiert ist, die Drehgeschwindigkeit der Garnwickeltrommel einzustellen, dadurch gekennzeichnet, dass der Verbrauchsindikator die Drehgeschwindigkeit der Garnwickeltrommel ist und dass der Wert Null dieser Drehgeschwindigkeit als Unterbrechung der Garnabgabe an die Textilmaschine (106) interpretiert wird.
  7. Vorrichtung zum Zuführen/Zurückholen von Garn zu/von einer Textilmaschine (22, 106), mit
    einem Garnzuführer (12, 100), der dazu angeordnet ist, Garn (F, F') der Textilmaschine zuzuführen,
    einem Garnrückholer (32, 120), der zwischen dem Garnzuführer (12, 100) und der Textilmaschine (22, 106) angeordnet und mit einer motorisierten Garnspule (34, 122) versehen ist, die einen darin ausgebildeten Durchlass (44, 124) hat, durch den das Garn verläuft und der sich zwischen einer Einlassöffnung (44a, 126), die zur Mitte des freien Endes (34a, 122a) der Garnspule offen ist, und einer Auslassöffnung (44b, 126) erstreckt, die auf der Seitenfläche (34b, 122b) der Garnspule gebildet ist, einer Einstelleinrichtung (28, 102), die von einer Steuereinheit (CU, CU') gesteuert ist, um die Zugspannung des Garns (F, F') im Wesentlichen konstant auf einem Referenzwert (T_ref, T'_ref) zu halten, basierend auf einem von der Sensoreinrichtung (30, 108) erzeugten, gemessenen Zugspannungssignal (T_meas, T'_meas), wobei die Garnspule (34, 122) sich in einer Stellung minimaler Garnbeeinflussung befindet,
    wobei der Garnrückholer (32, 120) dazu betreibbar ist, eine bereits an die Maschine abgegebene Garnmenge vorübergehend zurückzuholen und sie zu einem späteren Zeitpunkt wieder abzugeben,
    dadurch gekennzeichnet, dass die Steuereinheit dazu programmiert ist, einen Verbrauchsindikator (LE, VRP) zu verarbeiten, der die Garnabgabe von dem Garnzuführer (12, 100) anzeigt und unabhängig von jeglichen Betriebssignalen der Textilmaschine (22, 106) ist, und, falls der Verbrauchsindikator (VRP, LE) eine Unterbrechung der Garnabgabe anzeigt, zum zeitweiligen Abschalten der Einstelleinrichtung (28, 102) und zeitweiligen Einschalten des Garnrückholers (32, 120) zum Drehen mit einer Geschwindigkeit, die basierend auf dem gemessenen Zugspannungssignal (T_meas, T'_meas) moduliert ist, um die Zugspannung des Garns im Wesentlichen konstant auf dem Referenzwert (T_ref, T'_ref) zu halten.
  8. Vorrichtung nach Anspruch 7, bei der der Garnzuführer (100) ein Gehäuse (103) hat, welches eine motorisierte Garnwickeltrommel (102) und die Sensoreinrichtung (108) trägt, dadurch gekennzeichnet, dass die Garnspule (122) ebenfalls von dem Gehäuse (103) zwischen der Garnwickeltrommel (102) und der Sensoreinrichtung (108) getragen ist und mit ihrer Achse parallel zur Achse der Garnwickeltrommel (102) angeordnet ist.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Einlassöffnung (126) eine Achse hat, die schräg zur Achse der Garnspule (122) verläuft.
  10. Vorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Einlassöffnung (126) und die Auslassöffnung (128) zugehörige innere abgeschrägte Oberflächen aufweisen.
EP12008643.4A 2012-03-22 2012-12-28 Garnzuführungs-/-rückgewinnungsverfahren für Textilmaschinen, und Vorrichtung zur Durchführung eines solchen Verfahrens Active EP2642004B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000261A ITTO20120261A1 (it) 2012-03-22 2012-03-22 Metodo di alimentazione/recupero del filato per macchine tessili, ed apparato per l'esecuzione di tale metodo.

Publications (2)

Publication Number Publication Date
EP2642004A1 EP2642004A1 (de) 2013-09-25
EP2642004B1 true EP2642004B1 (de) 2014-05-14

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US (2) US20130248635A1 (de)
EP (1) EP2642004B1 (de)
CN (1) CN103320945B (de)
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EP2907906B1 (de) * 2014-02-13 2016-05-25 L.G.L. Electronics S.p.A. Bestandskontrollverfahren für einen Speichergarnzuführer mit Drehtrommel
CN107002320B (zh) * 2014-12-10 2018-11-09 内野株式会社 多层纱的制造方法和多层纱织品
DE102015104903B3 (de) * 2015-03-30 2016-06-16 Memminger-Iro Gmbh Verfahren und Vorrichtung zur Überwachung der Produktion einer Strickmaschine sowie Strickmaschine
BE1023564B1 (nl) * 2015-11-03 2017-05-05 VAN DE WIELE Michel NV Garenspanningssysteem en werkwijze voor het onder spanning houden van een garen dat van een garenopslagsysteem afgenomen wordt naar een garenafneemsysteem van een weefmachine toe
ITUB20160067A1 (it) * 2016-01-26 2017-07-26 Lgl Electronics Spa Dispositivo di recupero di filato per apparati tessili.
CN108519117A (zh) * 2018-03-20 2018-09-11 通鼎互联信息股份有限公司 一种断纱检测装置
IT201900011451A1 (it) * 2019-07-11 2021-01-11 Lgl Electronics Spa Metodo per l'alimentazione a tensione controllata di una pluralita' di filati ad una macchina tessile
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CN103320945B (zh) 2016-02-24
ITTO20120261A1 (it) 2013-09-23
EP2642004A1 (de) 2013-09-25
US20150299914A1 (en) 2015-10-22
US20130248635A1 (en) 2013-09-26

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